PMC:7172848 / 207-447 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T4","span":{"begin":64,"end":194},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"confirmed cases were reported in China until March 9, 2020 [1]. To prevent and control the spread of the pandemic, effective measures of medical isolation and self-isolation were widely adopted. However, isolation may cause negative psychol"}